Advanced Operations
Relation between input current and calculated concentration
Figure 50 shows the output current depending on the process value, the set low value and the set high value with an output range of 0–20 mA.
| Figure 50 | Output current with an output range of | ||
1 | Output current (OC) |
| 5 | Low value (LV) |
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2 | OC=f(PV) |
| 6 | 0 mA |
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3 | Process value (PV) |
| 7 | 20 mA |
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4 | High value (HV) |
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The output current (OC) is a function of the process value (PV).
The output current is determined by formula (1):
⋅ 20 mA
(1) OC = f(PV) =
HV-LV
where: OC=Output current PV=Process value LV=Low value HV=High value
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